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ERC-20
Oracle
Overview
Max Total Supply
1,000,000,000 LINK
Holders
732,160 ( 0.017%)
Market
Price
$23.91 @ 0.007629 ETH (+5.79%)
Onchain Market Cap
$23,910,000,000.00
Circulating Supply Market Cap
$15,255,345,062.00
Other Info
Token Contract (WITH 18 Decimals)
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# | Exchange | Pair | Price | 24H Volume | % Volume |
---|---|---|---|---|---|
1 | Binance | LINK-USDT | $23.83 0.0076022 Eth | $126,933,545.00 5,461,165.970 LINK | 21.2289% |
2 | Coinbase Exchange | LINK-USD | $23.88 0.0076174 Eth | $63,671,052.00 2,666,515.270 LINK | 10.3654% |
3 | Bybit | LINK-USDT | $23.86 0.0076104 Eth | $51,874,813.00 2,239,240.409 LINK | 8.7045% |
4 | OKX | LINK-USDT | $23.88 0.0076181 Eth | $26,823,496.00 1,165,903.414 LINK | 4.5322% |
5 | P2B | LINK-USDT | $23.81 0.0075879 Eth | $21,885,776.00 919,369.970 LINK | 3.5738% |
6 | DigiFinex | LINK-USDT | $23.91 0.0076271 Eth | $17,900,258.00 748,669.020 LINK | 2.9103% |
7 | Gate.io | LINK-USDT | $23.89 0.0076201 Eth | $17,649,077.00 759,342.660 LINK | 2.9518% |
8 | Uniswap V3 (Ethereum) | 0X514910771AF9CA656AF840DFF83E8264ECF986CA-0XC02AAA39B223FE8D0A0E5C4F27EAD9083C756CC2 | $23.91 0.0076233 Eth | $17,628,064.00 754,505.276 0X514910771AF9CA656AF840DFF83E8264ECF986CA | 2.9330% |
9 | MEXC | LINK-USDT | $23.88 0.0076183 Eth | $14,220,957.00 595,440.970 LINK | 2.3146% |
10 | HTX | LINK-USDT | $23.84 0.0076044 Eth | $13,824,379.00 596,146.461 LINK | 2.3174% |
11 | XT.COM | LINK-USDT | $23.90 0.0076246 Eth | $12,595,895.00 541,911.380 LINK | 2.1065% |
12 | Azbit | LINK-USDT | $23.80 0.0075962 Eth | $12,369,109.00 532,044.914 LINK | 2.0682% |
13 | Binance | LINK-FDUSD | $23.91 0.0076139 Eth | $10,974,285.00 470,359.600 LINK | 1.8284% |
14 | Kraken | LINK-USD | $23.92 0.0076291 Eth | $10,972,998.00 458,823.319 LINK | 1.7836% |
15 | Bitunix | LINK-USDT | $23.94 0.0076312 Eth | $10,695,685.00 446,762.670 LINK | 1.7367% |
16 | Binance | LINK-USDC | $23.93 0.0076330 Eth | $10,462,842.00 447,718.600 LINK | 1.7404% |
17 | Coinstore | LINK-USDT | $23.83 0.0076071 Eth | $10,277,735.00 442,393.870 LINK | 1.7197% |
18 | KuCoin | LINK-USDT | $23.93 0.0076293 Eth | $9,978,152.00 417,054.008 LINK | 1.6212% |
19 | CoinW | LINK-USDT | $23.80 0.0075968 Eth | $8,541,619.00 358,953.780 LINK | 1.3953% |
20 | BYDFi | LINK-USDT | $24.01 0.0076340 Eth | $7,357,568.00 306,375.330 LINK | 1.1910% |
21 | Coinbase Exchange | LINK-EUR | $23.94 0.0076363 Eth | $7,296,624.00 304,786.370 LINK | 1.1848% |
22 | BTSE | LINK-USDT | $23.88 0.0076218 Eth | $6,464,352.00 270,706.381 LINK | 1.0523% |
23 | LBank | LINK-USDT | $23.78 0.0075690 Eth | $6,337,201.00 266,454.830 LINK | 1.0358% |
24 | LATOKEN | LINK-USDT | $23.95 0.0076406 Eth | $6,290,043.00 262,598.240 LINK | 1.0208% |
25 | QMall | LINK-USDT | $23.83 0.0076057 Eth | $5,222,295.00 224,310.145 LINK | 0.8720% |
26 | WhiteBIT | LINK-USDT | $24.00 0.0076528 Eth | $4,891,183.00 203,810.170 LINK | 0.7923% |
27 | Bitvavo | LINK-EUR | $23.82 0.0076047 Eth | $4,821,443.00 202,391.570 LINK | 0.7867% |
28 | Dex-Trade | LINK-USDT | $23.92 0.0076292 Eth | $3,856,591.00 161,243.690 LINK | 0.6268% |
29 | FMCPAY | LINK-USDT | $23.87 0.0076151 Eth | $3,708,657.00 159,796.236 LINK | 0.6212% |
30 | Biconomy.com | LINK-USDT | $23.93 0.0076281 Eth | $3,398,384.00 147,725.870 LINK | 0.5742% |
31 | CoinEx | LINK-USDT | $23.80 0.0075762 Eth | $2,765,556.00 119,288.774 LINK | 0.4637% |
32 | Uniswap V3 (Arbitrum One) | 0XF97F4DF75117A78C1A5A0DBB814AF92458539FB4-0X82AF49447D8A07E3BD95BD0D56F35241523FBAB1 | $23.70 0.0075576 Eth | $2,442,243.00 105,181.072 0XF97F4DF75117A78C1A5A0DBB814AF92458539FB4 | 0.4089% |
33 | PointPay | LINK-USDT | $23.98 0.0076357 Eth | $2,089,930.00 89,809.595 LINK | 0.3491% |
34 | Coinbase Exchange | LINK-GBP | $23.91 0.0076262 Eth | $1,946,549.00 81,417.550 LINK | 0.3165% |
35 | WhiteBIT | LINK-TRY | $23.94 0.0076350 Eth | $1,914,004.00 79,963.800 LINK | 0.3108% |
36 | FMCPAY | LINK-ETH | $23.94 0.0076330 Eth | $1,691,667.00 72,501.440 LINK | 0.2818% |
37 | Phemex | LINK-USDT | $23.82 0.0076056 Eth | $1,603,354.00 67,311.470 LINK | 0.2617% |
38 | FMCPAY | LINK-BTC | $23.92 0.0076247 Eth | $1,487,792.00 63,114.700 LINK | 0.2453% |
39 | Kraken | LINK-EUR | $23.89 0.0076206 Eth | $1,363,280.00 57,067.534 LINK | 0.2218% |
40 | EarnBIT | LINK-USDT | $23.96 0.0076412 Eth | $1,312,244.00 56,940.927 LINK | 0.2213% |
41 | OKX | LINK-USDC | $23.90 0.0076231 Eth | $1,236,005.00 53,488.395 LINK | 0.2079% |
42 | Binance | LINK-TRY | $23.92 0.0076304 Eth | $1,213,128.00 52,047.650 LINK | 0.2023% |
43 | Uniswap V3 (Ethereum) | 0X1F9840A85D5AF5BF1D1762F925BDADDC4201F984-0X514910771AF9CA656AF840DFF83E8264ECF986CA | $23.88 0.0076147 Eth | $1,174,720.00 97,220.712 0X1F9840A85D5AF5BF1D1762F925BDADDC4201F984 | 0.3779% |
44 | EXMO | LINK-USDT | $23.92 0.0076321 Eth | $1,173,686.00 49,058.516 LINK | 0.1907% |
45 | tanX | LINK-USDC | $23.94 0.0076330 Eth | $1,093,590.00 47,281.280 LINK | 0.1838% |
46 | Bitbank | LINK-JPY | $23.91 0.0076242 Eth | $1,074,414.00 44,937.942 LINK | 0.1747% |
47 | WhiteBIT | LINK-BTC | $23.97 0.0076447 Eth | $1,073,659.00 44,785.630 LINK | 0.1741% |
48 | Binance | LINK-ETH | $23.83 0.0076085 Eth | $1,029,569.00 44,264.970 LINK | 0.1721% |
49 | Binance | LINK-EUR | $23.79 0.0075962 Eth | $949,749.00 40,753.840 LINK | 0.1584% |
50 | WhiteBIT | LINK-EUR | $23.90 0.0076240 Eth | $947,171.00 39,627.990 LINK | 0.1540% |
51 | PancakeSwap V3 (BSC) | 0XF8A0BF9CF54BB92F17374D9E9A321E6A111A51BD-0XBB4CDB9CBD36B01BD1CBAEBF2DE08D9173BC095C | $23.84 0.0076059 Eth | $931,879.00 39,854.238 0XF8A0BF9CF54BB92F17374D9E9A321E6A111A51BD | 0.1549% |
52 | BitStorage | LINK-USDT | $23.88 0.0076165 Eth | $931,743.00 39,021.810 LINK | 0.1517% |
53 | BigONE | LINK-USDT | $23.90 0.0076011 Eth | $929,755.00 38,901.360 LINK | 0.1512% |
54 | Uniswap V3 (Arbitrum One) | 0XF97F4DF75117A78C1A5A0DBB814AF92458539FB4-0XFD086BC7CD5C481DCC9C85EBE478A1C0B69FCBB9 | $23.88 0.0076159 Eth | $861,089.00 37,153.120 0XF97F4DF75117A78C1A5A0DBB814AF92458539FB4 | 0.1444% |
55 | Bybit | LINK-USDC | $23.84 0.0076052 Eth | $848,662.00 36,770.899 LINK | 0.1429% |
56 | Trubit | LINK-USDT | $23.92 0.0076290 Eth | $846,643.00 36,524.570 LINK | 0.1420% |
57 | Uniswap V3 (Polygon) | 0X53E0BCA35EC356BD5DDDFEBBD1FC0FD03FABAD39-0X0D500B1D8E8EF31E21C99D1DB9A6444D3ADF1270 | $23.93 0.0076313 Eth | $813,569.00 34,924.576 0X53E0BCA35EC356BD5DDDFEBBD1FC0FD03FABAD39 | 0.1358% |
58 | Gemini | LINK-USD | $23.92 0.0076299 Eth | $809,432.00 33,841.934 LINK | 0.1316% |
59 | QMall | LINK-USDC | $23.79 0.0075955 Eth | $807,709.00 34,532.077 LINK | 0.1342% |
60 | Uniswap V3 (Polygon) | 0X3C499C542CEF5E3811E1192CE70D8CC03D5C3359-0X53E0BCA35EC356BD5DDDFEBBD1FC0FD03FABAD39 | $23.79 0.0075873 Eth | $741,329.00 726,144.884 0X3C499C542CEF5E3811E1192CE70D8CC03D5C3359 | 2.8227% |
61 | Coinbase Exchange | LINK-USDT | $23.92 0.0076272 Eth | $732,020.00 30,604.478 LINK | 0.1190% |
62 | itBit | LINK-USD | $23.92 0.0076277 Eth | $587,712.00 24,569.915 LINK | 0.0955% |
63 | LATOKEN | LINK-BTC | $23.76 0.0075627 Eth | $554,850.00 23,348.741 LINK | 0.0908% |
64 | Uniswap V3 (Polygon) | 0X53E0BCA35EC356BD5DDDFEBBD1FC0FD03FABAD39-0X7CEB23FD6BC0ADD59E62AC25578270CFF1B9F619 | $23.92 0.0076286 Eth | $545,291.00 23,287.039 0X53E0BCA35EC356BD5DDDFEBBD1FC0FD03FABAD39 | 0.0905% |
65 | Uniswap V3 (Polygon) | 0X53E0BCA35EC356BD5DDDFEBBD1FC0FD03FABAD39-0X2791BCA1F2DE4661ED88A30C99A7A9449AA84174 | $23.93 0.0076321 Eth | $528,602.00 22,668.917 0X53E0BCA35EC356BD5DDDFEBBD1FC0FD03FABAD39 | 0.0881% |
66 | ProBit Global | LINK-BTC | $23.69 0.0075474 Eth | $520,493.00 21,969.086 LINK | 0.0854% |
67 | Camelot V3 | 0XF97F4DF75117A78C1A5A0DBB814AF92458539FB4-0X82AF49447D8A07E3BD95BD0D56F35241523FBAB1 | $23.69 0.0075556 Eth | $506,732.00 21,666.557 0XF97F4DF75117A78C1A5A0DBB814AF92458539FB4 | 0.0842% |
68 | Quickswap (v3) | 0X53E0BCA35EC356BD5DDDFEBBD1FC0FD03FABAD39-0X7CEB23FD6BC0ADD59E62AC25578270CFF1B9F619 | $23.88 0.0076176 Eth | $501,495.00 21,384.423 0X53E0BCA35EC356BD5DDDFEBBD1FC0FD03FABAD39 | 0.0831% |
69 | Coinbase Exchange | LINK-BTC | $23.94 0.0076327 Eth | $431,713.00 18,036.320 LINK | 0.0701% |
70 | BitDelta | LINK-USDT | $23.96 0.0076268 Eth | $332,069.00 14,312.000 LINK | 0.0556% |
71 | HashKey Exchange | LINK-USD | $23.69 0.0075443 Eth | $315,998.00 13,671.237 LINK | 0.0531% |
72 | Uniswap V3 (Ethereum) | 0X514910771AF9CA656AF840DFF83E8264ECF986CA-0XA0B86991C6218B36C1D19D4A2E9EB0CE3606EB48 | $23.93 0.0076288 Eth | $296,925.00 12,783.123 0X514910771AF9CA656AF840DFF83E8264ECF986CA | 0.0497% |
73 | BitMart | LINK-BTC | $23.93 0.0076286 Eth | $295,340.00 12,343.280 LINK | 0.0480% |
74 | Coinbase Exchange | LINK-ETH | $23.86 0.0076150 Eth | $295,016.00 12,365.460 LINK | 0.0481% |
75 | GMO Japan | LINK-JPY | $23.76 0.0075781 Eth | $289,420.00 12,182.500 LINK | 0.0474% |
76 | Uniswap V3 (Optimism) | 0X350A791BFC2C21F9ED5D10980DAD2E2638FFA7F6-0X4200000000000000000000000000000000000006 | $23.85 0.0076034 Eth | $274,109.00 11,826.793 0X350A791BFC2C21F9ED5D10980DAD2E2638FFA7F6 | 0.0460% |
77 | ProBit Global | LINK-USDT | $23.98 0.0076501 Eth | $260,219.00 10,850.005 LINK | 0.0422% |
78 | bitcastle | LINK-USDT | $23.92 0.0076278 Eth | $251,720.00 10,820.960 LINK | 0.0421% |
79 | Bitso | LINK-USD | $23.79 0.0075920 Eth | $240,569.00 10,113.820 LINK | 0.0393% |
80 | Slex | LINK-ETH | $23.95 0.0076357 Eth | $229,191.00 9,826.620 LINK | 0.0382% |
81 | Hotcoin | LINK-BTC | $23.95 0.0076088 Eth | $228,467.00 9,541.210 LINK | 0.0371% |
82 | Bitci TR | LINK-TRY | $23.89 0.0076254 Eth | $221,633.00 9,557.490 LINK | 0.0372% |
83 | Kraken | LINK-USDC | $24.05 0.0076706 Eth | $217,858.00 9,060.140 LINK | 0.0352% |
84 | BitStorage | LINK-ETH | $23.93 0.0076309 Eth | $212,325.00 8,872.810 LINK | 0.0345% |
85 | KuCoin | LINK-USDC | $23.97 0.0076433 Eth | $208,083.00 8,681.240 LINK | 0.0337% |
86 | DeGate | 0X514910771AF9CA656AF840DFF83E8264ECF986CA-0XA0B86991C6218B36C1D19D4A2E9EB0CE3606EB48 | $23.77 0.0075762 Eth | $207,121.00 8,869.893 0X514910771AF9CA656AF840DFF83E8264ECF986CA | 0.0345% |
87 | PointPay | LINK-BTC | $23.95 0.0076276 Eth | $205,221.00 8,709.384 LINK | 0.0339% |
88 | Uniswap V3 (Arbitrum One) | 0XAF88D065E77C8CC2239327C5EDB3A432268E5831-0XF97F4DF75117A78C1A5A0DBB814AF92458539FB4 | $23.70 0.0075557 Eth | $196,695.00 191,738.791 0XAF88D065E77C8CC2239327C5EDB3A432268E5831 | 0.7453% |
89 | BYDFi | LINK-USDC | $23.81 0.0076000 Eth | $188,169.00 7,904.230 LINK | 0.0307% |
90 | Quickswap (v3) | 0X3C499C542CEF5E3811E1192CE70D8CC03D5C3359-0X53E0BCA35EC356BD5DDDFEBBD1FC0FD03FABAD39 | $23.91 0.0076270 Eth | $172,161.00 167,653.606 0X3C499C542CEF5E3811E1192CE70D8CC03D5C3359 | 0.6517% |
91 | Solidly V3 (Ethereum) | 0X514910771AF9CA656AF840DFF83E8264ECF986CA-0XC02AAA39B223FE8D0A0E5C4F27EAD9083C756CC2 | $23.88 0.0076180 Eth | $162,233.00 6,944.688 0X514910771AF9CA656AF840DFF83E8264ECF986CA | 0.0270% |
92 | Mercado Bitcoin | LINK-BRL | $23.69 0.0075522 Eth | $149,415.00 6,307.742 LINK | 0.0245% |
93 | Kraken | LINK-GBP | $23.89 0.0076220 Eth | $141,485.00 5,921.507 LINK | 0.0230% |
94 | Uniswap V3 (Ethereum) | 0X1F9840A85D5AF5BF1D1762F925BDADDC4201F984-0X514910771AF9CA656AF840DFF83E8264ECF986CA | $23.91 0.0076233 Eth | $139,708.00 11,535.981 0X1F9840A85D5AF5BF1D1762F925BDADDC4201F984 | 0.0448% |
95 | Binance US | LINK-USDT | $23.98 0.0076540 Eth | $130,641.00 5,447.830 LINK | 0.0212% |
96 | Bitkub | LINK-THB | $23.88 0.0076185 Eth | $130,449.00 5,461.843 LINK | 0.0212% |
97 | Uniswap V3 (Avalanche) | 0X5947BB275C521040051D82396192181B413227A3-0XB31F66AA3C1E785363F0875A1B74E27B85FD66C7 | $24.11 0.0076859 Eth | $113,418.00 4,743.351 0X5947BB275C521040051D82396192181B413227A3 | 0.0184% |
98 | Uniswap V3 (Arbitrum One) | 0XF97F4DF75117A78C1A5A0DBB814AF92458539FB4-0X2F2A2543B76A4166549F7AAB2E75BEF0AEFC5B0F | $23.77 0.0075782 Eth | $109,188.00 4,651.685 0XF97F4DF75117A78C1A5A0DBB814AF92458539FB4 | 0.0181% |
99 | PancakeSwap (v2) | 0XF8A0BF9CF54BB92F17374D9E9A321E6A111A51BD-0XBB4CDB9CBD36B01BD1CBAEBF2DE08D9173BC095C | $23.92 0.0076295 Eth | $106,458.00 4,560.681 0XF8A0BF9CF54BB92F17374D9E9A321E6A111A51BD | 0.0177% |
100 | KuCoin | LINK-BTC | $23.89 0.0076187 Eth | $97,034.00 4,061.373 LINK | 0.0158% |
Contract Source Code Verified (Exact Match)
Contract Name:
LinkToken
Compiler Version
v0.4.16+commit.d7661dd9
Optimization Enabled:
Yes with 200 runs
Other Settings:
default evmVersion, Audited
Contract Source Code (Solidity)Audit Report
/** *Submitted for verification at Etherscan.io on 2017-09-23 */ pragma solidity ^0.4.16; /** * @title SafeMath * @dev Math operations with safety checks that throw on error */ library SafeMath { function mul(uint256 a, uint256 b) internal constant returns (uint256) { uint256 c = a * b; assert(a == 0 || c / a == b); return c; } function div(uint256 a, uint256 b) internal constant returns (uint256) { // assert(b > 0); // Solidity automatically throws when dividing by 0 uint256 c = a / b; // assert(a == b * c + a % b); // There is no case in which this doesn't hold return c; } function sub(uint256 a, uint256 b) internal constant returns (uint256) { assert(b <= a); return a - b; } function add(uint256 a, uint256 b) internal constant returns (uint256) { uint256 c = a + b; assert(c >= a); return c; } } /** * @title ERC20Basic * @dev Simpler version of ERC20 interface * @dev see https://github.com/ethereum/EIPs/issues/179 */ contract ERC20Basic { uint256 public totalSupply; function balanceOf(address who) constant returns (uint256); function transfer(address to, uint256 value) returns (bool); event Transfer(address indexed from, address indexed to, uint256 value); } /** * @title ERC20 interface * @dev see https://github.com/ethereum/EIPs/issues/20 */ contract ERC20 is ERC20Basic { function allowance(address owner, address spender) constant returns (uint256); function transferFrom(address from, address to, uint256 value) returns (bool); function approve(address spender, uint256 value) returns (bool); event Approval(address indexed owner, address indexed spender, uint256 value); } contract ERC677 is ERC20 { function transferAndCall(address to, uint value, bytes data) returns (bool success); event Transfer(address indexed from, address indexed to, uint value, bytes data); } contract ERC677Receiver { function onTokenTransfer(address _sender, uint _value, bytes _data); } /** * @title Basic token * @dev Basic version of StandardToken, with no allowances. */ contract BasicToken is ERC20Basic { using SafeMath for uint256; mapping(address => uint256) balances; /** * @dev transfer token for a specified address * @param _to The address to transfer to. * @param _value The amount to be transferred. */ function transfer(address _to, uint256 _value) returns (bool) { balances[msg.sender] = balances[msg.sender].sub(_value); balances[_to] = balances[_to].add(_value); Transfer(msg.sender, _to, _value); return true; } /** * @dev Gets the balance of the specified address. * @param _owner The address to query the the balance of. * @return An uint256 representing the amount owned by the passed address. */ function balanceOf(address _owner) constant returns (uint256 balance) { return balances[_owner]; } } /** * @title Standard ERC20 token * * @dev Implementation of the basic standard token. * @dev https://github.com/ethereum/EIPs/issues/20 * @dev Based on code by FirstBlood: https://github.com/Firstbloodio/token/blob/master/smart_contract/FirstBloodToken.sol */ contract StandardToken is ERC20, BasicToken { mapping (address => mapping (address => uint256)) allowed; /** * @dev Transfer tokens from one address to another * @param _from address The address which you want to send tokens from * @param _to address The address which you want to transfer to * @param _value uint256 the amount of tokens to be transferred */ function transferFrom(address _from, address _to, uint256 _value) returns (bool) { var _allowance = allowed[_from][msg.sender]; // Check is not needed because sub(_allowance, _value) will already throw if this condition is not met // require (_value <= _allowance); balances[_from] = balances[_from].sub(_value); balances[_to] = balances[_to].add(_value); allowed[_from][msg.sender] = _allowance.sub(_value); Transfer(_from, _to, _value); return true; } /** * @dev Approve the passed address to spend the specified amount of tokens on behalf of msg.sender. * @param _spender The address which will spend the funds. * @param _value The amount of tokens to be spent. */ function approve(address _spender, uint256 _value) returns (bool) { allowed[msg.sender][_spender] = _value; Approval(msg.sender, _spender, _value); return true; } /** * @dev Function to check the amount of tokens that an owner allowed to a spender. * @param _owner address The address which owns the funds. * @param _spender address The address which will spend the funds. * @return A uint256 specifying the amount of tokens still available for the spender. */ function allowance(address _owner, address _spender) constant returns (uint256 remaining) { return allowed[_owner][_spender]; } /* * approve should be called when allowed[_spender] == 0. To increment * allowed value is better to use this function to avoid 2 calls (and wait until * the first transaction is mined) * From MonolithDAO Token.sol */ function increaseApproval (address _spender, uint _addedValue) returns (bool success) { allowed[msg.sender][_spender] = allowed[msg.sender][_spender].add(_addedValue); Approval(msg.sender, _spender, allowed[msg.sender][_spender]); return true; } function decreaseApproval (address _spender, uint _subtractedValue) returns (bool success) { uint oldValue = allowed[msg.sender][_spender]; if (_subtractedValue > oldValue) { allowed[msg.sender][_spender] = 0; } else { allowed[msg.sender][_spender] = oldValue.sub(_subtractedValue); } Approval(msg.sender, _spender, allowed[msg.sender][_spender]); return true; } } contract ERC677Token is ERC677 { /** * @dev transfer token to a contract address with additional data if the recipient is a contact. * @param _to The address to transfer to. * @param _value The amount to be transferred. * @param _data The extra data to be passed to the receiving contract. */ function transferAndCall(address _to, uint _value, bytes _data) public returns (bool success) { super.transfer(_to, _value); Transfer(msg.sender, _to, _value, _data); if (isContract(_to)) { contractFallback(_to, _value, _data); } return true; } // PRIVATE function contractFallback(address _to, uint _value, bytes _data) private { ERC677Receiver receiver = ERC677Receiver(_to); receiver.onTokenTransfer(msg.sender, _value, _data); } function isContract(address _addr) private returns (bool hasCode) { uint length; assembly { length := extcodesize(_addr) } return length > 0; } } contract LinkToken is StandardToken, ERC677Token { uint public constant totalSupply = 10**27; string public constant name = 'ChainLink Token'; uint8 public constant decimals = 18; string public constant symbol = 'LINK'; function LinkToken() public { balances[msg.sender] = totalSupply; } /** * @dev transfer token to a specified address with additional data if the recipient is a contract. * @param _to The address to transfer to. * @param _value The amount to be transferred. * @param _data The extra data to be passed to the receiving contract. */ function transferAndCall(address _to, uint _value, bytes _data) public validRecipient(_to) returns (bool success) { return super.transferAndCall(_to, _value, _data); } /** * @dev transfer token to a specified address. * @param _to The address to transfer to. * @param _value The amount to be transferred. */ function transfer(address _to, uint _value) public validRecipient(_to) returns (bool success) { return super.transfer(_to, _value); } /** * @dev Approve the passed address to spend the specified amount of tokens on behalf of msg.sender. * @param _spender The address which will spend the funds. * @param _value The amount of tokens to be spent. */ function approve(address _spender, uint256 _value) public validRecipient(_spender) returns (bool) { return super.approve(_spender, _value); } /** * @dev Transfer tokens from one address to another * @param _from address The address which you want to send tokens from * @param _to address The address which you want to transfer to * @param _value uint256 the amount of tokens to be transferred */ function transferFrom(address _from, address _to, uint256 _value) public validRecipient(_to) returns (bool) { return super.transferFrom(_from, _to, _value); } // MODIFIERS modifier validRecipient(address _recipient) { require(_recipient != address(0) && _recipient != address(this)); _; } }
Contract Security Audit
- Callisto Network - April 14th, 2019 - Security Audit Report
[{"constant":true,"inputs":[],"name":"name","outputs":[{"name":"","type":"string"}],"payable":false,"stateMutability":"view","type":"function"},{"constant":false,"inputs":[{"name":"_spender","type":"address"},{"name":"_value","type":"uint256"}],"name":"approve","outputs":[{"name":"","type":"bool"}],"payable":false,"stateMutability":"nonpayable","type":"function"},{"constant":true,"inputs":[],"name":"totalSupply","outputs":[{"name":"","type":"uint256"}],"payable":false,"stateMutability":"view","type":"function"},{"constant":false,"inputs":[{"name":"_from","type":"address"},{"name":"_to","type":"address"},{"name":"_value","type":"uint256"}],"name":"transferFrom","outputs":[{"name":"","type":"bool"}],"payable":false,"stateMutability":"nonpayable","type":"function"},{"constant":true,"inputs":[],"name":"decimals","outputs":[{"name":"","type":"uint8"}],"payable":false,"stateMutability":"view","type":"function"},{"constant":false,"inputs":[{"name":"_to","type":"address"},{"name":"_value","type":"uint256"},{"name":"_data","type":"bytes"}],"name":"transferAndCall","outputs":[{"name":"success","type":"bool"}],"payable":false,"stateMutability":"nonpayable","type":"function"},{"constant":false,"inputs":[{"name":"_spender","type":"address"},{"name":"_subtractedValue","type":"uint256"}],"name":"decreaseApproval","outputs":[{"name":"success","type":"bool"}],"payable":false,"stateMutability":"nonpayable","type":"function"},{"constant":true,"inputs":[{"name":"_owner","type":"address"}],"name":"balanceOf","outputs":[{"name":"balance","type":"uint256"}],"payable":false,"stateMutability":"view","type":"function"},{"constant":true,"inputs":[],"name":"symbol","outputs":[{"name":"","type":"string"}],"payable":false,"stateMutability":"view","type":"function"},{"constant":false,"inputs":[{"name":"_to","type":"address"},{"name":"_value","type":"uint256"}],"name":"transfer","outputs":[{"name":"success","type":"bool"}],"payable":false,"stateMutability":"nonpayable","type":"function"},{"constant":false,"inputs":[{"name":"_spender","type":"address"},{"name":"_addedValue","type":"uint256"}],"name":"increaseApproval","outputs":[{"name":"success","type":"bool"}],"payable":false,"stateMutability":"nonpayable","type":"function"},{"constant":true,"inputs":[{"name":"_owner","type":"address"},{"name":"_spender","type":"address"}],"name":"allowance","outputs":[{"name":"remaining","type":"uint256"}],"payable":false,"stateMutability":"view","type":"function"},{"inputs":[],"payable":false,"stateMutability":"nonpayable","type":"constructor"},{"anonymous":false,"inputs":[{"indexed":true,"name":"from","type":"address"},{"indexed":true,"name":"to","type":"address"},{"indexed":false,"name":"value","type":"uint256"},{"indexed":false,"name":"data","type":"bytes"}],"name":"Transfer","type":"event"},{"anonymous":false,"inputs":[{"indexed":true,"name":"owner","type":"address"},{"indexed":true,"name":"spender","type":"address"},{"indexed":false,"name":"value","type":"uint256"}],"name":"Approval","type":"event"}]
Contract Creation Code
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Deployed Bytecode
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Swarm Source
bzzr://c5f438ff94e5ddaf2058efa0019e246c636c37a622e04bb67827c7374acad8d6
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